"the long slot conductors are probably a bit ohmy"
They're more than adequate to run this kind of distance. The problem was always the track-end connects - sandpaper and a high-current ohm-meter(*) was an essential part of any kit with hard-wired links if you were the dedicated sort.
(*) Avo 8 was good. Electronic and DMM units don't push enough current to find the bit of problematic oxide and would register a track as OK even though it didn't work so well in service.
Biting the hand that feeds IT
